O-(2,4,6-Trimethylbenzenesulfonyl)hydroxylamine → 4-(4-Cyanophenyl)-2,5-dioxo-N-(1-imino-1-oxo-hexahydro-1lambda6-thiopyran-4-yl)-1-(3-(trifluoromethyl)phenyl)-4,5,6,7-tetrahydro-1H-cyclopenta[d]pyrimidine-3(2H)-carboxamide

Participants

Reaction Steps

4-(4-Cyanophenyl)-2,5-dioxo-N-(1-oxo-hexahydro-1λ4-thiopyran-4-yl)-1-(3-(trifluoro-methyl)phenyl)-4,5,6,7-tetrahydro-1H-cyclopenta[d]pyrimidine-3(2H)-carboxamide (example 43, 40 mg, 72 μmol) is added to a solution of O-mesitylenesulfonylhydroxyl-amine (66 mg, 0.31 mmol) in dichloromethane (1.0 mL), and the mixture is stirred at room temperature over night. All volatiles are removed under reduced pressure, and the residue is purified by reversed phase HPLC (Waters SunFire™-C18, gradient of acetonitrile in water, 0.1% TFA). Yield: 9 mg; ESI mass spectrum [M+H]+=572; Retention time HPLC: 0.90 min (Z018_S04).

Provenance & Evidence